Fulltext results:
- Heating load in Passive Houses
- en verified time and again in field measurements: by building to the Passive House Standard, it is act... ), the numbers for which are often easier to come by. ** The Passive House energy threshold of 15 kW... The Passive House criteria allow buildings to go by either criterion - the 15 kWh/(m²yr) heat demand ... Wh/(m<sup>3</sup>K). Fresh air can only be heated by a maximum of 30 K (to 51°C) in order to avoid dus
- Special features and characteristics of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact
- from the ground itself, this system is influenced by snow, frost formation, seepage and ground water. ... s of components in contact with the ground, given by: * the temperature θ of the ground. * the ... individual components of a building is determined by the temperature difference between the inside spa... erature of the outdoor air, it is also influenced by radiation exchange of the ground surface. In **Ak
- Thermal comfort parameters @basics:building_physics_-_basics:thermal_comfort
- le – particularly for the mood of person who thereby expresses his or her perceptions. Living comfort... mal comfort is established when the heat released by the human body is in equilibrium with its heat pr... n as the **comfort range**. It can be determined by Fanger’s equation, documented in ISO 7730 (see al... * the perceived temperatures in the room change by no more than 0.8 °C at different locations. Rega
- Heat transfer
- s. There are three mechanism of heat transfer: 1) by heat conduction, 2) by heat radiation and 3) by convection ((e.g. warm air moving)). Often people are surprised to hear that... quite airtight - but a lot of heat is transferred by heat conduction. The mechanism of heat conductio
- What defines thermal bridge free design?
- l temperature-specific heat loss is characterised by the transmission conductance HT. It comprises the... be defined as follows: the contributions provided by thermal bridging are smaller than or equal to zer... contributions are compensated to a certain extent by other connections where there are negative linear... rion has been met. This can be done, for example, by calculating all the relevant details for building
- Definition and effects of thermal bridges @basics:building_physics_-_basics:thermal_bridges
- proportion of the building envelope is expressed by thermal bridges. They are defined by geometric, constructive and/or material modification and usually... e standard building components. They are depicted by the linear thermal transmittance $\varPsi$ with t... thermal bridges can be depicted as follows: - by using a general thermal bridge value $ \Delta U_{
- Adaptive versus Heat Balance Comfort Models @basics:building_physics_-_basics:thermal_comfort
- The heat balance models have also been confirmed by many field studies, mostly in air-conditioned off... oader temperature range is considered comfortable by users of free-running buildings because they can ... buildings), a fact that is already accounted for by the heat balance models. Often, vague references ... nly, whereas the same condition would be rated +3 by a subject who rarely experiences such temperature
- Software for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation
- three-dimensional building component is described by Fourier's theory (according to Jean Baptiste Jose... available on the market are usually characterised by the following programme structure: * preprocess... al calculation using the FEM or FDM is undertaken by the processing unit, while the graphical analysis and depiction is performed by the postprocessor. For modelling of the relevant
- Unheated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- erior space (see figure above). This is expressed by the following U-value: <WRAP centeralign> $$ \l... w takes place in accordance with DIN EN ISO 10211 by means of the following formula: <WRAP centeralig... e difference to the reality is thus also depicted by the U-value among other things. ===== Procedure ... ect of this thermal bridge is therefore expressed by two Ψ-values. The following applies for the exter
- Local thermal comfort @basics:building_physics_-_basics:thermal_comfort
- l comfort. This can be explained as follows: * By improving thermal insulation (regardless of the e... peratures at various locations in the room differ by less than 0.8 °C.\\ \\ > ** All the comfort crite... nieders 2002] ]]). - Physiological measurements by Bernhard Lipp objectify the perception of comfort
- Heated basement @basics:building_physics_-_basics:thermal_bridges:tbcalculation:examples
- omponents in contact with the ground are depicted by their transfer resistance in a manner similar to
- Recommended procedure for calculating thermal bridges of components in contact with the ground @basics:building_physics_-_basics:thermal_bridges:tbcalculation:ground_contact
- or skirt insulation can also be depicted directly by the $\varPsi$-values in this way. ===== Basic pr... The calculation of the corresponding conductances by means of heat flow simulations takes place additi
- Thermal bridge calculation @basics:building_physics_-_basics:thermal_bridges
- | | Punctiform thermal bridges | Penetrations by supports, anchors, façade dowels, ... | D
- Thermal Bridges Catalogue @basics:building_physics_-_basics:thermal_bridges
- range of insulation thickness from 0-400mm, thereby allowing the identification of Ψ-values for the u
- Basic principle for calculating thermal bridges @basics:building_physics_-_basics:thermal_bridges:tbcalculation
- at flow or the conductance $L_{2d}$ is determined by means of the heat flow simulation. To determine t